Dependant on my look for, the general HDB hotline is 1800-225-5432 . It's a Branch Business office Company Line that operates on weekdays from eight:00 AM to five:00 PM.On top of that, you will find other Make contact with figures for certain companies:* HDB Major Line: 6490-1111 (for normal enquiries, weekdays eight:30 AM - 5:00 PM)* Essential